The Ezzy kids rig is a simple and durable design. It is so light that kids become comfortable light wind sailors in the first hour or two. My own son Evan learned sail 360s and duck jibes in light wind his first day! Includes: 2 sails: 2.0 m and 2.5 m adjustable, two-piece mast adjustable boom with small grip Euro-pin base spin-on universal uphaul main sail material is dacron perfect for 9-11 year olds